Quick Answer
Most homes need far less speed than they are sold. A single 4K stream uses roughly 15 to 25 Mbps, a video call uses 3 to 5 Mbps, and online gaming uses under 10 Mbps. A couple is comfortable on 100 to 200 Mbps, and a busy family of four with a dozen connected devices is well served by 300 to 500 Mbps.
Gigabit plans make sense for content creators uploading large files daily, or households where several people download very large game installs at once. For everyone else, spending the difference on better Wi-Fi coverage delivers a bigger improvement than a faster plan.
What common activities actually consume
Bandwidth requirements are much smaller than marketing implies, because video compression has improved dramatically.
- 4K streaming: roughly 15 to 25 Mbps per stream.
- HD streaming: around 5 Mbps per stream.
- Video conferencing in HD: 3 to 5 Mbps down and a similar amount up.
- Online multiplayer gaming: 3 to 10 Mbps, and it is latency-sensitive rather than bandwidth-hungry.
- Web browsing and social media: 2 to 5 Mbps in bursts.
- Music streaming: under 1 Mbps.
- Smart home cameras: 1 to 4 Mbps of upload each while recording.
Add those up honestly. Two 4K televisions, two phones and a laptop on a call comes to roughly 60 Mbps of genuine simultaneous demand.
Recommendations by household
One or two people
100 to 200 Mbps is plenty. That covers two simultaneous 4K streams, a work video call and background updates without anyone noticing congestion.
A family of three or four
300 to 500 Mbps is the practical sweet spot. It comfortably supports 15 to 20 connected devices, multiple televisions, remote work and console gaming at the same time, and it leaves headroom for large downloads.
Five or more people, or creators
500 Mbps to 1 Gbps is justified when several people regularly download 100GB game installs, when someone uploads large video files for work, or when the house runs local servers and heavy cloud backups.
Upload speed is the number nobody advertises
Advertised speeds almost always describe download only. Cable connections are asymmetric, so a 500 Mbps plan might carry just 20 Mbps of upload. That is fine for streaming Netflix and poor for a household where two people run video calls while a camera uploads footage and a laptop backs up to the cloud.
Fibre connections are usually symmetric, meaning a 300 Mbps fibre plan gives you 300 Mbps in both directions. In daily use, a 300 Mbps symmetric fibre line feels faster and more stable than a gigabit cable line with a narrow upload channel. If you work from home, weight upload speed heavily in your decision.
Why your fast plan still feels slow
When people complain about their internet, the plan is rarely the problem. Three things usually are.
1. Wi-Fi coverage
The 5GHz and 6GHz bands carry more data but pass through walls poorly. A single router in a hallway cupboard can deliver 500 Mbps in the living room and 20 Mbps in the far bedroom. A mesh system with two or three nodes fixes this permanently, and it is cheaper than a year of plan upgrades.
2. Old or overloaded router hardware
The router supplied by an internet provider is built to a price. Once you connect twenty devices, including smart plugs, doorbells, speakers and televisions, cheap routers start dropping packets and stalling connections. A modern Wi-Fi 6 router handles many simultaneous clients far better.
3. Latency, not bandwidth
Gaming lag, video call freezes and slow-feeling page loads are usually latency and jitter problems. Bandwidth is how wide the road is; latency is how long the trip takes. Plugging a console or work computer in with an ethernet cable removes wireless variability instantly and solves most of these complaints.
How to work out your own number
- Count the devices that are genuinely active at the same time in the busiest hour of your day.
- Assign realistic figures: 25 Mbps per 4K stream, 5 Mbps per HD stream or call, 10 Mbps per gaming device.
- Add them together, then double the total for headroom.
- Round up to the nearest plan tier.
Most households land somewhere between 150 and 400 Mbps using this method, which is well below what providers push.
Before you upgrade, try this
- Run a speed test next to the router, then in the problem room. A big gap means a coverage problem, not a plan problem.
- Reboot the router properly and check whether its firmware is current.
- Move the router out of the cupboard. Central, elevated and in the open beats hidden every time.
- Split or prioritise bands. Put smart home devices on 2.4GHz and phones and laptops on 5GHz or 6GHz.
- Wire what you can. Televisions, consoles and desktop machines rarely need to be wireless.
Data caps and contract traps
Speed is not the only variable. Check whether the plan has a monthly data cap, whether the advertised price rises sharply after a promotional period, and whether equipment rental is bundled or billed separately. Buying your own router usually pays for itself within a year of avoided rental fees, and it performs better.
The bottom line
Buy 100 to 200 Mbps if you live alone or as a couple, 300 to 500 Mbps for a busy family, and gigabit only if you routinely move very large files. Then take the money you saved and spend it on a mesh Wi-Fi system and a couple of ethernet cables. A stable 300 Mbps everywhere in the house beats a gigabit plan that collapses two rooms away.
